Frame for a warp-tying machine and the like



April 1969 A. ALTENWEGER 3,438,103

FRAME FOR A WARP-TYING MACHINE AND THE LIKE Filed Dec. 5, 1967 Fig.1

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Flg 3 x 14 I 3 a L s 4 //\/VENTOR ALOMS A LTENWEGEF? United StatesPatent 3,438,103 FRAME FOR A WARP-TYING MACHINE AND THE LIKE AloisAltenweger, Uster, Switzerland, assignor to Zellweger Ltd., Uster,Switzerland, a corporation of Switzerland Filed Dec. 5, 1967, Ser. No.688,148 Claims priority, application Switzerland, Jan. 6, 1967,

388/67 Int. Cl. n03; 1/14, 1/18, 3/00 U.S. Cl. 28--41 9 Claims ABSTRACTOF THE DISCLOSURE This invention relates to a frame for a warp-tyingmachine and the like.

Generally, frames for conventional warp-tying machines and the like aremounted on casters for movement, especially, for movement towards thelooms. When the warps are arranged and stretched, the frames requireimmoblization to a certain extent, for example, by braking of thecastors. However, the frames have not been prevented from being drawntowards the looms under the tension of the stretched warps, that is, bytilting. Further, it has not been possible to enlarge the area on whichthe frame stands by increasing the distance between the castors becausethe depth of the frame has to be kept within predetermined limits owingto the limited amount of space available between the looms.

Accordingly, it is an object of the invention to maintain a frame for awarp-tying machine against movement toward a loom upon braking of theframe.

'It is another object of the invention to enlarge the area of support ofa frame for a warp-tying machine upon immobilizing of the frame adjacenta loom.

It is another object of the invention to reduce the tilting of a framefor a warp-tying machine When positioned adjacent a loom.

Briefly, the invention provides a castor supported frame for awarp-tying machine which includes a pair of supporting struts mounted onthe frame and connected to a hinged treadle board of the frame. Thesupporting struts are mounted on the frame and interconnected to thetreadle board so as to rest on the floor when the treadle board isfolded down onto the floor. When resting on the floor, the supportingstruts extend outwardly of the side of the frame closest the loom so asto immobilize the frame against movement towards the frame as well as tosupport the frame.

These and other objects and advantages of the invention will become moreapparent from the following detailed description and appended claimstaken in conjunction with the accompanying drawings in which:

FIG. 1 illustrates a fragmentary perspective view of the right-handlower section of a frame according to the invention with the treadle"board folded up;

FIG. 2 illustrates a view of the frame similar to FIG. 1 with thetreadle board in a partially lowered position; and

:FIG. 3 illustrates a side view of the frame of the invention with thetreadle board and supporting strut fully down.

Referring to the drawings, while only one side of the frame ishereinafter specifically described, it is to be under- 3,438,103Patented Apr. 15, 1969 stood that the frame has two sides of identicalstructure. The frame for the warp-tying machine includes verticallyadjustable feet 1 connected to brackets 2 which are supported on castors3, 4. The upper parts of the frame are of known construction and aretherefore not shown or further described. The opposite left-hand andright-hand brackets 2 of the frame are connected together and kept apartby a pair of struts 5, "6. A treadle board 7 is rotatably mounted on thestrut 6 to be folded up and down in order to provide a platform forenabling an operator to work from a raised position so as to reach theelevated upper parts of the frame.

A supporting strut 8 is provided on each side of the frame to facilitatesupporting of the frame and to immobilize the frame on the floor. Eachsupporting strut 8 is rotatably mounted at one end in a bearing 11 whichis secured in a pair of flanges 1'1 supported from the strut 6 andsecured to the treadle board 7. In addition, a pair of plates 12 arefixedly supported from the struts 5, 6 on opposite sides of thesupporting strut 8 and a pair of bolts 13, 14 are disposed between theplates 12 to slidably guide the supporting strut 8 therebetween. Thesupporting strut 8 can thus be moved in and out with respect to theframe depending upon the tilting movement of the treadle board 7. Thetreadle board 7 and supporting strut 8 are coupled in such anarticulated relation that when the treadle board 7 is up, the strut 8 ispulled in and when the treadle board is down, the strut is pushed out.The bearing 11 is arranged in a manner relative to the axis of rotationon the strut 6 and the length of the supporting strut 8 is such thatwhen the treadle board 7 is folded up, the end 8 of the supporting strut8 is maintained within the boundaries of the frame while when thetreadle board 7 is folded down, the end 8" of the supporting strut 8bears on the floor a distance L outside the boundaries of the frame.

In the travelling position of the frame, the supporting strut 8 ispulled in so as not to project beyond the boundary of the frame andthereby prevents the frame from occupying more space than otherwisewithout the strut 8. When the frame is brought up to a loom 9, the strut8 is pushed out toward the loom 9 to rest on the floor under a warp beam10 on the loom 9.

In order to vary the pressure with which the supporting strut 8 rests onthe floor, the end 8 of the supporting strut 8 is arranged to rest onthe floor to immobilize the frame before the treadle board 7 reaches thefully down position as determined by the stop 15. That is, the unloadedtreadle board 7 when folded down remains in a suspended position whenthe supporting strut 8 initially contacts the floor. Upon application ofa downward force on the suspended treadle board 7, as by an operatorstepping thereon, the treadle board 7 is pressured down onto the stop 15so that the supporting strut 8 is pressed with greater force onto thefloor. The additional movements of the bearing 11 is made possible bythe resilience of the strut 8. During these movements of the treadleboard 7 between its upper and lower positions the end 8 of thesupporting strut 8 follows a geometric path 16. This path 16 has avertical section at the outermost end which indicates that, when thestrut 8 contacts the floor, the full unfolding of the treadle board 7produces greater pressure on the floor without displacing the frame.

What is claimed is:

1. A frame for a warptying machine including a treadle board rotatablymounted in the frame for up and down movement relative to a floor, andat least one supporting strut slidably mounted in the frame inarticulated relation with said treadle board for movement of said strutinto and out of the frame in response to the up and down movement ofsaid treadle board whereby said strut is brought to rest on the floorupon downward movement of said treadle board and pulled into the frameupon upward movement of said treadle board.

2. A frame as set forth in claim 1 further includes a plurality ofcastors mounting the frame on the floor for rolling movement thereon.

3. A frame as set forth in claim 1 which further includes a stop thereonfor engaging said treadle board in the downmost position of said treadleboard, and wherein the end of said supporting strut is sized to rest onthe floor prior to engagement of said treadle board with said stop.

4. A frame for a warp-tying machine including a pair of brackets forsupporting the frame on a floor, a pair of struts connecting saidbrackets together, a treadle board rotatably mounted on one of saidstruts for up and down movement relative to the floor, a pair of platesfixedly supported from said struts, a supporting strut disposed betweensaid plates in articulated relation with said treadle board at one endthereof, and means disposed about said supporting strut within saidplates for slidably guiding said supporting strut therebetween wherebysaid supporting strut is movable into and out of the boundary of theframe in response to the movement of said treadle board relative to thefloor.

5. A frame as set forth in claim 4 wherein said means includes a pair ofbolts disposed on opposite sides of said supporting strut;

6. A frame as set forth in claim 4 which further in- 4 cludes a stop onone of said brackets for engaging said treadle board upon downwardmovement of said treadle board and wherein the end of said supportingstrut is sized to rest on the floor out of the boundary of the frameprior to engagement of said treadle board with said stop.

7. A frame as set forth in claim 4 wherein the end of said supportingstrut follows a path of movement out of the frame having a verticalsection relative to the floor at the outermost end.

8. A frame as set forth in claim 4 which further includes a pair offlanges supported from said one strut and secured to opposite sides ofsaid treadle board, and a bearing rotatably mounted in said flange androtatably secured to one end of said supporting strut to articulate saidsupporting strut to said treadle board.

9. A frame as set forth in claim 8 which further includes a pair ofcastors secured to each said bracket for rollably mounting the frame onthe floor.

References Cited UNITED STATES PATENTS 2,972,797 2/1961 Altenweger 28-41 LOUIS K. RIMRODT, Primary Examiner.

US. Cl. X.R. 2849

